The Hills star Brody Jenner rushed to be by his father Bruce Jenner's side after the dad-of-six was involved in a four-car collision on Pacific Coast Highway yesterday.
The 65-year-old Keeping up with the Kardashians star was travelling in his black Cadillac Escalade when the accident happened.
Bruce, who is currently making a very public transition from male to female, looked shaken as he emerged from his vehicle and underwent a breath test at the side of the road.
One eyewitness took to social media following the tragic incident, tweeting: "Bruce Jenner in a bad accident on PCH in Malibu. He's alright, but others involved, not so much."
The cause of the collision, which occurred at lunch time yesterday, is as yet unknown, but it has been reported that the fatal crash resulted in the death of one woman and the hospitalisation of five children.
Our thoughts go out to all those involved.